Using a half-pencil run over frets 1 and 2 to mark the fret
height on the nut blank.
Laying out the spacing on the middle 5 strings after filing rough
slots for guide strings on the outside. The strings should fan
evenly from their origin at the tie block to the nut. Because
positioning the bridge perfectly is difficult, the spacing of
the outside strings on the nut must follow the bridge spacing.